The vapor pressure of water at 20°C is 17.5 mmHg.What is the vapor pressure of water over a solution prepared from 2.00 × 10² g of sucrose (C₁₂H₂₂O₁₁)and 3.50 × 10² g water? A)0.51 mmHg B)16.0 mmHg C)17.0 mmHg D)18.0 mmHg E)19.4 mmHg

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The vapor pressure of a solution is calculated using Raoult's Law. The mole fraction of water is used to find the vapor pressure over the solution. The mole fraction of water is approximately 0.97, leading to a vapor pressure of about 17.0 mmHg.

The Vapor Pressure of Water at 20°C Is 17